12172820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{55331}}^1$

素因数の和:55351

約数の個数: 24

約数和(自身を含む): 27887328

約数和(自身を除く): 15714508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 55331, 110662, 221324, 276655, 553310, 608641, 1106620, 1217282, 2434564, 3043205, 6086410, 12172820]

約数ペア:

[(1, 12172820), (2, 6086410), (4, 3043205), (5, 2434564), (10, 1217282), (11, 1106620), (20, 608641), (22, 553310), (44, 276655), (55, 221324), (110, 110662), (220, 55331)]